Automatic coin controlled telephone apparatus



Dec. 15, 1931. c.. A. CAMBAY AUTOMATIC COIN CONTROLLED TELEPHONE APPARATUS 4% La (M Filed Jan; 3, 1929 w w a 1. Id 1w I A? a 3 him E a a m the balanced rocking device to oscillate in;

the same direction in order to eject the coin.-

Patented Dec. 15, 1 931 i UNITED STATES PATIENT OFFICE A CHABLES'AMEDEE may, or rams, FRANCE AUTOMATIC com oon'moLLEn TELEPHONE APPARATUS Application flled January 3, 1929,8eria111o. 330,061, and in France January 28, 1927. j j 1 My invention relates to an operating coin controlled apparatus for telephone calls I of the kind in which the introduction of a coin or a counter in the apparatus trees a movable in order to get another connectionto introduce another coin in the apparatus.

The balanced rocking device is moreover provided with a single 0 rating pin which is moved either upwards; ymeans of ajheel.

integral with a connecting rod actuated by the liquid braking device in such afmanner as to guide the coin in the till, or downwards by means of aspring abutment which causes Fig. 1 is a side view of the apparatus, the enclosing plates-being removed,-showing some of the parts, with the telephone hook in 3 latched position.

Fig. 2 is a view slmilar to Fig. 1, showing the relation of the operating slide in front of the arts in Fig. 1. p j

T e operating mechanism is contained in a narrow casing 1, Figs. 1 and 2, for attachment to a telephone and having apertures 3 through which passes the'hook lever 4, on which the telephone receiver is hung.

The casing 1 contains a coin slot 6 for conducting acoin or token in such a manner as to act on a pivoted lever, 7 whose oneend projects into the path of the coin and whose other, hookedend, 8 engages a lug 9 on a latch 10 pivoted at 50. n a

The nose 10 of the latch 10 normally lies over the telephone hook lever4 and retains it in-latched position until a coin falls on the lever? and releases the latch which is then retracted by a spring 11. A stop pin 10 limits the movement of the latch 10 when releasing the lever 4. i

The coin first strikes the end of lever -7 that projects intoits path and liberates the latch 10, which in turn releases the telephone lever 4 and comes to rest on two pins 12 and 42 act upon-pin 42 to cause-themember-13 to projecting into its path, as shown at 15 Fig. 3. These pins are supported by a member13 pivoted at 14 so as to be swung either to the left for retention of the coin, or to the right to return the coin to the operator, as will be explained later. j i

In the upper part ofthe casing 1 is a plate 16 provided with vertical guide slots 17., Pins 51 pass through the slots for guiding the plate and are fastened on casing member 1. A spring 17 is disposed on the plate 16 which engages a pin 1O on the latch 10 to return it to latching position when the telephone re ceiver 5 is replaced on the telephone book lever 4Q The upper part of the plate 16 carries a Iugat- 16" on whichacts the end ofa spring-retracted plunger 18 whose head18 is manually engaged to depress the plunger 18. and plate 16, which in turn may depressthe hook lever 4. 1 j

At the lower end of the plate 16 is a projection 16 carrying a pin 19 movable in a slot 20 ofa slide20 that is, operated by a liquid brake for timing the conversation.

This brake is situated at the bottom of the casing 1, and comprises a cylinder 21 con taining oilor other liquid, and a piston connected by a link 22 to one end of a lever'23 pivoted at 24, and whose other end is pivoted to the lower end of the slide 20. The slide 20 is guided on thepin 19 by the slot 20.

A spring 25 serves to operate the brake after the deposit of the coin, times the conversation, and returns the slide 20 to its up per position.

The slide 20 carries an, arm 20 on which is .fixed a'bracket 43 having alug 43 positioned moved to and fro in an inclined direction to move on its pivot to eject the coin for return to the operator when the receiver is hung up before the timing brake has finished its operating movement. This yielding arrangement of the spring abutment permits it to pass the pin after accomplishing the operation.

On the back of the plate. 16. is mounted a latch 39, pivoted at 38 and whose one end is moved onto the hook lever 4 after a suitable time. On the latch is a lug 39 having an elongated opening through which may slide a rod 40 on the upper end of slide 20 on .lease the spring-retracted latch 10 which comes to rest against the stop 10. The coin continues its descent and is held by the two pins 12 and 42. on thepivoted member 13. The receiver is then liftedfrom its hook 4 and the latter rises carrying with it plate 16, and the operator then asks for connection with the subscriber. 1

Upon the rising of plate '16 the pin 19 is lifted from the bottom of slot 20 and the slide 20 is free to move upward under the action of the spring 25 on the lever 23 checked by thebrake 21:." The brakeistimed for a definite interval,'say sixty seconds. If com.- munication is obtained before the sixty seconds have expired, the piston of the brake continues to descend. to the bottom of the cylinder 21 until the time indicated has ex pired.

The lug 43 on the plate 43 fixed on arm 20" of slide 20 engages pin 42 of the pivoted member13 and causes it to tilt and discharge the coin to the left for retention.

When the conversationhas terminated the receiver 5 is hung up on its hook which is then lowered and plate 16 is moved down with it. Spring 17 strikes pin. to move the latch 10 into its latching position with the noselQ on top of the hook lever 4 and the, hooked end of 7 engaging the lug 9.

Upon descentof. the plate 16 the: pin 19 strikes the bottom of its slot 20 and causes the slide to'descendwith it-and actuate lever 23 to. stress its spring 25 preparatory to another call.. v

Incase communication has not been established within the time allowed, the receiver and causes the member 13 to tilt to eject the coin to the right.

If a second, fraudulent, connection should be attempted, without replacing the receiver on its hook, by operating the plunger 18 or the hook lever 4, the plate 16 is depressed and lever 4 descends below the curved end 39 of lever 39 and it moves over the telephone hook lever 4 under the pressure of spring 41. Under these conditions the slide 16 has been raised during the previous call; and the spring 41 is under compression against the lug 39 of the latch 39 just at the moment when the compression of spring 41 is about to swing the latch 39 on its pivot against the hook lever 4, so that when the latter or the plate is moved down, the curved end 39 immediately passes above the hook lever 4, and the lever 4 cannot rise sufficiently to make a connection until another coin is placed in the apparatus, 7

What I claim and desire to secure by Letters Patent of the United States is:

1. An automatic telephone apparatus controlled by a coin or counter, which comprises an opening for the introduction ofthe coin, a chute, a locking lever for the receiver suspensionhook, a rocking detent for the looking lever, said. rocking detent being released by an inserted .coin, a balanced rocking device, two pins provided on same in order to receive the coin temporarily, a third pin to actuate the rocking device, a liquid braking devlce, a rodconnected to the braking piston,

a spring'actuated pivoted lever connecting the piston connecting rod to a slide, a heel attached-to said slide acting upon the driving pin of the rocking device to compel it to OS- cillate, to one side a movable'plate actuated by the movements of the telephone suspension hook, a spring abutment upon said plate to compel the rocking device to oscillate to the opposite side, and a safety device actuated by the slide which is connected to the braking device in order to engage the hook lever when an attempt is made to call prior tothe insertion of a coin.

2. A pay attachment for telephones having a receive-r supporting hook, coin released latching means for the hook, a plate, controlled vertically by said hook, and a springoperated slide released by said plate; in com bination with a pivoted means operated from the slide, positioned to engagethe hook, to

prevent a second call if the plate or hook are again depressed without insertion of a coin. In testimony that I claim the foregoing as my-invention, I have signed my name.

' CHARLES AMEDEE CAMBAY.

' is hung up and thebrake has. not yet com- 9 pleted its operation, so that lug43 has not.

engaged pin 42. of the tiling member 13, and

the spring abutment strikes the pin 42 

